It is wrong to iounmap resources in the normal path of davinci_pm_init()
The 3 ioremap'ed fields of 'pm_config' can be accessed later on in other
functions, so we should return 'success' instead of unrolling everything.
Fixes: aa9aa1ec2d ("ARM: davinci: PM: rework init, remove platform device")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[nsekhar@ti.com: commit message and minor style fixes]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
As DaVinci uses the standard suspend_valid_only_mem() for its
platform_suspend_ops.valid() callback, its platform_suspend_ops.enter()
callback will never be called with state equal to PM_SUSPEND_STANDBY.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Since the PM core code is no longer using a fake platform_device or
platform_data, remove references to 'pdata'.
No functional changes.
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Remove fake platform device used for PM init. Move pdata values which
are common across all current platforms into pm.c.
Also, since PM is only used on da8xx, remove davinci_pm_init() from
common init code, and only use in da850/omapl138 board files that are
currently creating the fake platform_device.
Suggested-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
[nsekhar@ti.com: subject line adjustment]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Some header files are never included outside of a mach-davinci
directory and do not need to be made visible in include/mach,
so let's just move them all down one level.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Fix the following sparse warnings by declaring relevant
global variables.
CHECK arch/arm/mach-davinci/usb.c
arch/arm/mach-davinci/usb.c:134:12: warning: symbol 'da8xx_register_usb20' was not declared. Should it be static?
arch/arm/mach-davinci/usb.c:169:12: warning: symbol 'da8xx_register_usb11' was not declared. Should it be static?
CHECK arch/arm/mach-davinci/pm.c
arch/arm/mach-davinci/pm.c:155:12: warning: symbol 'davinci_pm_init' was not declared. Should it be static?
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually).
To prevent mm.h inclusion via other channels also extract "enum dma_data_direction"
definition into separate header. This tiny piece is what gluing netdevice.h with mm.h
via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h".
Removal of mm.h from scatterlist.h was tried and was found not feasible
on most archs, so the link was cutoff earlier.
Hope people are OK with tiny include file.
Note, that mm_types.h is still dragged in, but it is a separate story.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While at it, fix two checkpatch errors.
Several non-const struct instances constified by this patch were added after
the introduction of platform_suspend_ops in checkpatch.pl's list of "should
be const" structs (79404849e9).
Patch against mainline.
Inspired by hunks of the grsecurity patch, updated for newer kernels.
Signed-off-by: Lionel Debroux <lionel_debroux@yahoo.fr>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds core power management (suspend-to-RAM)
support for DaVinci SoCs.
The code depends on the the "deepsleep" feature to suspend
the SoC and saves power by gating the input clock.
The wakeup can be based on an external event as supported
by the SoC.
Assembly code (in sleep.S) is added to aid gating DDR2
clocks. Code doing this work should not be accessing DDR2.
The assembly code is relocated to SRAM by the code in pm.c
The support has been validated on DA850/OMAP-L138 only
though the code is (hopefully) generic enough that other
SoCs supporting deepsleep feature simply requires SoC
specific code to start using this driver.
Note that all the device drivers don't support suspend/resume
still and are being worked on.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
